95.17% is the change from 331 to 646
Calculation steps:
[( 646 - 331 ) ÷ 331] x 100 = 95.17%
Formula
Percentage change = [(646 - 331) / 331] x 100
Subtract the new number by the original number
646 - 331 = 315
315 ÷ 331 = 0.9516616314199395
0.9516616314199395 x 100 = 95.17%